Folic acid / Latin America / Developing Country / Family Planning / Valproic Acid / Pregnant Women / Congenital malformation / Prospective Study / Pregnancy Outcome / General Population / Pregnant Women / Congenital malformation / Prospective Study / Pregnancy Outcome / General Population
Bariatric Surgery / Minerals / Folic acid / Adolescent / Humans / Female / Male / Young Adult / Iron / Income / Body Mass Index / Parathyroid Hormone / Obesity Surgery / Clinical Sciences / Aged / Prevalence / Middle Aged / Adult / Public health systems and services research / Sex Factors / Morbid Obesity / Educational Status / Iron Deficiency Anemia / Hemoglobins / Preoperative Period / Avitaminosis / Female / Male / Young Adult / Iron / Income / Body Mass Index / Parathyroid Hormone / Obesity Surgery / Clinical Sciences / Aged / Prevalence / Middle Aged / Adult / Public health systems and services research / Sex Factors / Morbid Obesity / Educational Status / Iron Deficiency Anemia / Hemoglobins / Preoperative Period / Avitaminosis
Nursing / General Practice / Primary Health Care / Folic acid / Family Practice / Humans / Female / Male / Aged / Middle Aged / Adult / Public health systems and services research / Retrospective Studies / Sensitivity and Specificity / Erythrocytes / Hemoglobins / Creatinine / vitamin B deficiency / Humans / Female / Male / Aged / Middle Aged / Adult / Public health systems and services research / Retrospective Studies / Sensitivity and Specificity / Erythrocytes / Hemoglobins / Creatinine / vitamin B deficiency